Question

(a) State Mendeleev's periodic law.
because their chemical properties are the same? Justify your disc.
(b) What chemical properties of elements were used by Mendeleev in creating his periodic table ?
(c) State any three limitations of Mendeleev's classification of elements.
(d) Besides gallium, which two other elements have since been discovered for which Mendeleev had left
gaps in his periodic table ?
(e) Which group of elements was missing from Mendeleev's original periodic table ?​

Answer 1

Explanation:

HOPE IT HELPS. MARK ME AS BRAINLIEST.

Answer 2

Answer:

A. Mendeleev’s periodic law states that the properties of elements are a periodic function of their atomic masses.

B. The physical property used was the atomic mass of an element. The chemical property used was the nature of oxide and hydride formed i.e. similarity in chemical properties were used by Mendeleev.

C. On picture.........

D. Scandium(Sc) and germanium(Ge)

E. Noble gases

Explanation:

I hope it helpful

Have a good day